42d2d70abe
They were anyway unused since years Change-Id: I559b5042f6b942d7a940ac374d2b2740f2d4dc12 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
283 lines
7.6 KiB
C++
283 lines
7.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the qmake application of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qmakevfs.h"
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#include "ioutils.h"
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using namespace QMakeInternal;
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#include <qdir.h>
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#include <qfile.h>
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#include <qfileinfo.h>
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#define fL1S(s) QString::fromLatin1(s)
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QT_BEGIN_NAMESPACE
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QMakeVfs::QMakeVfs()
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#ifndef PROEVALUATOR_FULL
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: m_magicMissing(fL1S("missing"))
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, m_magicExisting(fL1S("existing"))
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#endif
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{
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ref();
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}
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QMakeVfs::~QMakeVfs()
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{
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deref();
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}
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void QMakeVfs::ref()
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{
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#ifdef PROEVALUATOR_THREAD_SAFE
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QMutexLocker locker(&s_mutex);
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#endif
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++s_refCount;
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}
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void QMakeVfs::deref()
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{
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#ifdef PROEVALUATOR_THREAD_SAFE
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QMutexLocker locker(&s_mutex);
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#endif
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if (!--s_refCount) {
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s_fileIdCounter = 0;
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s_fileIdMap.clear();
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s_idFileMap.clear();
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}
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}
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#ifdef PROPARSER_THREAD_SAFE
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QMutex QMakeVfs::s_mutex;
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#endif
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int QMakeVfs::s_refCount;
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QAtomicInt QMakeVfs::s_fileIdCounter;
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QHash<QString, int> QMakeVfs::s_fileIdMap;
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QHash<int, QString> QMakeVfs::s_idFileMap;
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int QMakeVfs::idForFileName(const QString &fn, VfsFlags flags)
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{
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#ifdef PROEVALUATOR_DUAL_VFS
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{
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# ifdef PROPARSER_THREAD_SAFE
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QMutexLocker locker(&m_vmutex);
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# endif
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int idx = (flags & VfsCumulative) ? 1 : 0;
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if (flags & VfsCreate) {
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int &id = m_virtualFileIdMap[idx][fn];
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if (!id) {
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id = ++s_fileIdCounter;
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m_virtualIdFileMap[id] = fn;
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}
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return id;
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}
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int id = m_virtualFileIdMap[idx].value(fn);
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if (id || (flags & VfsCreatedOnly))
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return id;
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}
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#endif
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#ifdef PROPARSER_THREAD_SAFE
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QMutexLocker locker(&s_mutex);
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#endif
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if (!(flags & VfsAccessedOnly)) {
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int &id = s_fileIdMap[fn];
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if (!id) {
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id = ++s_fileIdCounter;
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s_idFileMap[id] = fn;
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}
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return id;
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}
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return s_fileIdMap.value(fn);
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}
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QString QMakeVfs::fileNameForId(int id)
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{
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#ifdef PROEVALUATOR_DUAL_VFS
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{
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# ifdef PROPARSER_THREAD_SAFE
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QMutexLocker locker(&m_vmutex);
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# endif
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const QString &fn = m_virtualIdFileMap.value(id);
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if (!fn.isEmpty())
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return fn;
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}
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#endif
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#ifdef PROPARSER_THREAD_SAFE
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QMutexLocker locker(&s_mutex);
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#endif
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return s_idFileMap.value(id);
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}
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bool QMakeVfs::writeFile(int id, QIODevice::OpenMode mode, VfsFlags flags,
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const QString &contents, QString *errStr)
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{
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#ifndef PROEVALUATOR_FULL
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# ifdef PROEVALUATOR_THREAD_SAFE
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QMutexLocker locker(&m_mutex);
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# endif
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QString *cont = &m_files[id];
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Q_UNUSED(flags)
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if (mode & QIODevice::Append)
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*cont += contents;
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else
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*cont = contents;
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Q_UNUSED(errStr)
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return true;
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#else
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QFileInfo qfi(fileNameForId(id));
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if (!QDir::current().mkpath(qfi.path())) {
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*errStr = fL1S("Cannot create parent directory");
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return false;
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}
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QByteArray bytes = contents.toLocal8Bit();
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QFile cfile(qfi.filePath());
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if (!(mode & QIODevice::Append) && cfile.open(QIODevice::ReadOnly | QIODevice::Text)) {
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if (cfile.readAll() == bytes) {
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if (flags & VfsExecutable) {
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cfile.setPermissions(cfile.permissions()
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| QFile::ExeUser | QFile::ExeGroup | QFile::ExeOther);
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} else {
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cfile.setPermissions(cfile.permissions()
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& ~(QFile::ExeUser | QFile::ExeGroup | QFile::ExeOther));
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}
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return true;
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}
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cfile.close();
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}
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if (!cfile.open(mode | QIODevice::WriteOnly | QIODevice::Text)) {
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*errStr = cfile.errorString();
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return false;
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}
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cfile.write(bytes);
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cfile.close();
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if (cfile.error() != QFile::NoError) {
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*errStr = cfile.errorString();
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return false;
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}
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if (flags & VfsExecutable)
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cfile.setPermissions(cfile.permissions()
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| QFile::ExeUser | QFile::ExeGroup | QFile::ExeOther);
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return true;
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#endif
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}
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QMakeVfs::ReadResult QMakeVfs::readFile(int id, QString *contents, QString *errStr)
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{
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#ifndef PROEVALUATOR_FULL
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# ifdef PROEVALUATOR_THREAD_SAFE
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QMutexLocker locker(&m_mutex);
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# endif
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auto it = m_files.constFind(id);
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if (it != m_files.constEnd()) {
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if (it->constData() == m_magicMissing.constData()) {
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*errStr = fL1S("No such file or directory");
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return ReadNotFound;
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}
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if (it->constData() != m_magicExisting.constData()) {
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*contents = *it;
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return ReadOk;
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}
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}
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#endif
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QFile file(fileNameForId(id));
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if (!file.open(QIODevice::ReadOnly)) {
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if (!file.exists()) {
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#ifndef PROEVALUATOR_FULL
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m_files[id] = m_magicMissing;
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#endif
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*errStr = fL1S("No such file or directory");
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return ReadNotFound;
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}
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*errStr = file.errorString();
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return ReadOtherError;
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}
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#ifndef PROEVALUATOR_FULL
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m_files[id] = m_magicExisting;
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#endif
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QByteArray bcont = file.readAll();
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if (bcont.startsWith("\xef\xbb\xbf")) {
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// UTF-8 BOM will cause subtle errors
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*errStr = fL1S("Unexpected UTF-8 BOM");
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return ReadOtherError;
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}
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*contents = QString::fromLocal8Bit(bcont);
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return ReadOk;
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}
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bool QMakeVfs::exists(const QString &fn, VfsFlags flags)
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{
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#ifndef PROEVALUATOR_FULL
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# ifdef PROEVALUATOR_THREAD_SAFE
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QMutexLocker locker(&m_mutex);
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# endif
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int id = idForFileName(fn, flags);
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auto it = m_files.constFind(id);
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if (it != m_files.constEnd())
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return it->constData() != m_magicMissing.constData();
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#else
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Q_UNUSED(flags)
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#endif
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bool ex = IoUtils::fileType(fn) == IoUtils::FileIsRegular;
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#ifndef PROEVALUATOR_FULL
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m_files[id] = ex ? m_magicExisting : m_magicMissing;
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#endif
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return ex;
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}
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#ifndef PROEVALUATOR_FULL
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// This should be called when the sources may have changed (e.g., VCS update).
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void QMakeVfs::invalidateCache()
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{
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# ifdef PROEVALUATOR_THREAD_SAFE
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QMutexLocker locker(&m_mutex);
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# endif
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auto it = m_files.begin(), eit = m_files.end();
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while (it != eit) {
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if (it->constData() == m_magicMissing.constData()
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||it->constData() == m_magicExisting.constData())
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it = m_files.erase(it);
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else
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++it;
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}
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}
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// This should be called when generated files may have changed (e.g., actual build).
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void QMakeVfs::invalidateContents()
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{
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# ifdef PROEVALUATOR_THREAD_SAFE
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QMutexLocker locker(&m_mutex);
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# endif
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m_files.clear();
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}
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#endif
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QT_END_NAMESPACE
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